Every blog post that took off on Hacker News, ranked by the votes of its best submission. 579 posts.
Static analysis tools (SAST) are perhaps the most common tool for an AppSec team in the endless effort to move security to the left. They can be integrated into development pipelines in order to of…
We run one of the largest microservices deployments in the world, with thousands of services that perform billions of requests per second. Keeping information secure as these services communicate g…
There is widespread mention in the media of a security vulnerability in PostgreSQL, registered as [CVE-2019-9193](https://nvd.nist.gov/vuln/detail/CVE-2019-9193). The PostgreSQL Security Team …
Research by: Eyal Itkin TL;DR Cameras. We take them to every important life event, we bring them on our vacations, and we store them in a protective case to keep them safe during transit. Cameras are more than just a tool or toy; we entrust them with our very memories, and so they are very important […]
MyPayrollHR , a now defunct cloud-based payroll processing firm based in upstate New York, abruptly ceased operations this past week after stiffing employees at thousands of companies. The ongoing debacle, which allegedly involves malfeasance on the part of the payroll company’s CEO, resulted in countless people…
How quickly can we use brute force to guess a 64-bit number? The short answer is, it all depends on what resources are available. So we’re going to examine this problem starting with the most naive approach and then expand to other techniques involving parallelization. We’ll discuss parallelization at the CPU level…
Almost one year ago now, I declared extended validation certificates dead [https://www.troyhunt.com/extended-validation-certificates-are-dead/]. The entity name had just been removed from Safari on iOS, it was about to be removed from Safari on Mojave and there were indications that Chrome would remove it
Discover more about what's new at AWS with Introducing Amazon EC2 Instance Connect
Ginseng: keeping secrets in registers when you distrust the operating system Yun & Zhong et al., NDSS’19 Suppose you did go to the extreme length of establishing an unconditional root of …
OpenSSL's inadequate documentation, confusing key formats, and deprecated interfaces make it difficult to use, despite its importance.
This is the inaugural issue of Cryptography Dispatches, meant to be quick, frequent and lightly edited discussions of cryptographic topics. Longer form can be found at blog.filippo.io. If you are not reading this in your email client, you can subscribe here .
Nearly three dozen journalists at a broad range of major publications have been targeted by a far-right group that maintains a Deep Web database listing the personal information of people who threaten their views. This group specializes in encouraging others to harass those targeted by their ire, and has claimed…
Help lock down your containers with these Kubernetes Engine features and guidance
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Posted by Christian Blichmann & Robert Swiecki, ISE Sandboxing team Many software projects process data which is externally generated, and...
In this work, we study how Tencent implements image filtering on WeChat. We found that Tencent implements realtime, automatic censorship of chat images on WeChat based on what text is in an image and based on an image’s visual similarity to those on a blacklist. Tencent facilitates this realtime filtering by…
At Signal, we want to make privacy simple. From the beginning, we’ve designed Signal so that your information is in your hands rather than ours. Technologies like Signal Protocol secure your messages so that they are never visible by anyone but you and the intended recipients. Technologies like p...
Third-party Facebook apps gather Facebook data about the people who use them. While Facebook struggles to contain these exposures, insecure third-party data practices & misconfigured cloud systems continue to leak Facebook data to the internet. See how UpGuard discovered and secured two such cases.
When we publicly demanded that Facebook stop messing with users’ phone numbers last week, we weren’t expecting the social network to double down quite like this: By default, anyone can use the phone number that a user provides for two-factor authentication (2FA) to find that user’s profile. For...
The Proton Calendar uses an innovative encryption model to deliver the high level of security Proton users expect.
Fourteen years to the day after she discovered she was on the no-fly list when she was arrested at SFO, and five years after her legal victory in the first trial of a challenge to a government no-fly order (a Pyrrhic victory as she has still been denied a visa to return to the US), Dr. Rahinah Ibrahim won a third…
Flan Scan is a thin wrapper around Nmap that converts this popular open source tool into a vulnerability scanner with an easy deployment.
Broadly, an end-to-end encrypted messaging protocol is one that ensures that only the participants in a conversation, and no intermediate servers, routers, or relay systems, can read and write messages. An end-to-end encrypted group messaging protocol is one that ensures this for all participants in a conversation of…
A technical walk-through of how we hacked Blackboard and changed our grades.
Phone numbers stink for security and authentication. They stink because most of us have so much invested in these digits that they’ve become de facto identities. At the same time, when you lose control over a phone number — maybe it’s hijacked by fraudsters, you got separated or divorced, or you were way late on your…
